Home / 198,921.49-298,379.30-49,161.76

Finding the Fourth Proportional to 198,921.49, 298,379.30 and 49,161.76

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Solution

The fourth proportional to 198,921.49, 298,379.30 and 49,161.76 is: 73,741.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,921.49 : 298,379.30 = 49,161.76 : x
  2. Step 2: Convert to fraction form
    198,921.49/298,379.30 = 49,161.76/x
  3. Step 3: Cross multiply
    198,921.49x = 298,379.30 × 49,161.76
  4. Step 4: Simplify right side
    198,921.49x = 14,668,850,543.81
  5. Step 5: Solve for x
    x = 14,668,850,543.81/198,921.49
  6. Step 6: Final answer
    x = 73,741.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.